JP2000213744A - Combustion controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a combustible time by real time system and to improve handling operability by calculating a combustion continuable time in response to a combustion amount at that time or a preset combustion amount when a fuel of a predetermined residue is detected, and displaying it. SOLUTION: When fuel is retained at a residue A, a combustible time (T0) of a predetermined combustion amount and a fuel consumption amount (Q0) per unit time of the predetermined combustion amount are preset. When a fuel consumption amount (Q1) per unit time for the combustion amount when the fuel of the residue A is actually detected by a residue detecting means 5 is Q1, a combustible time (T1) responsive to the combustion amount when the residue A is detected becomes T1=T0×Q0/Q1. The combustible time calculated by a combustible time calculating means 7 is counted by a combustible time counting means 8, and the counted time is displayed on a display unit 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion control device used for a hot oil heater or the like.

[0002]

2. Description of the Related Art Conventionally, this type of oil heater is configured as shown in FIG. That is, in FIG. 13, reference numeral 1 denotes a combustion amount control unit that switches the combustion amount to a plurality of stages, and the combustion unit 3 is controlled by the combustion control unit 2 based on the output of the combustion amount control unit 1 and the like. Reference numeral 4 denotes an oil tank for storing fuel, 5 denotes remaining amount detecting means for detecting a predetermined remaining amount A of fuel, and 6 denotes that the remaining amount detecting means 5 determines that there is only a predetermined remaining amount of fuel. It is a display lamp for notifying when it is detected. The remaining amount detection means 5 is provided with a plurality of float switches in the oil tank 4 to detect the remaining amount stepwise, a method of detecting the weight of the oil tank 4 by a weight sensor or the like, A method of calculating a fuel consumption to obtain a remaining amount has been used.

[0003]

However, in the above-mentioned conventional configuration, the remaining amount in the oil tank is detected, and various remaining amounts are displayed based on the remaining amount.
For example, when the remaining amount is directly displayed by the display lamp, it is known that the fuel has only a predetermined remaining amount, but it is not possible to express how long combustion can be continued, The problem was that the user stopped refueling or forgot the notification on the indicator lamp and the combustion stopped before he or she noticed it, which was inconvenient.

Further, even in the case of employing a method for displaying the combustible time, the conventional configuration always detects the remaining amount at that time, calculates the combustible time according to the remaining amount, and displays the calculated remaining time. It requires a complicated detection configuration and arithmetic processing to detect the remaining amount,
In addition, there is a problem that the combustible time cannot be displayed in real time. That is, in the conventional configuration, it is necessary to obtain the remaining amount when calculating the combustible time, and an accurate combustible time cannot be obtained until after a predetermined amount of fuel is consumed.

[0005] The present invention solves the above-mentioned conventional problems, and displays a combustible time in real time to improve usability.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a temperature setting means, a temperature detection means, a combustion section for burning fuel, and a combustion section based on outputs of the temperature setting means and the temperature detection means. Combustion amount control means for switching the amount to a plurality of stages, a combustion control unit for controlling the combustion amount of the burner based on the combustion amount switched by the combustion amount control means; an oil tank for storing fuel; And a remaining amount detecting means for detecting a predetermined remaining amount A, and when the remaining amount detecting means detects a predetermined remaining amount A of the fuel, the combustion can be continued according to the combustion amount at that time or the preset combustion amount. A combustible time calculating means for calculating a time, a combustible time measuring means for measuring the combustible time, and a display unit for displaying the combustible time measured by the combustible time measuring means. Is the example was constructed.

According to the above invention, when it is detected that the fuel has only a predetermined remaining amount A, the combustible time at the remaining amount A is calculated, and the period determined from the predetermined combustion amount based on the combustible time is calculated. Because the time is displayed and the reduced time is displayed, the combustible time can be confirmed in real time, and a failure such as combustion stopped because the refueling timing was too late as in the past And it is very convenient to use.

In addition, since the combustible time is obtained based on the initial remaining amount A detected by the remaining amount detecting means, a complicated calculation process for calculating the remaining amount is not required, and the configuration is extremely simple. Is to be

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A combustion control device according to a first aspect of the present invention includes a temperature setting unit, a temperature detection unit, a combustion unit for burning fuel, and a combustion unit based on outputs of the temperature setting unit and the temperature detection unit. Combustion amount control means for switching the amount to a plurality of stages;
A combustion control unit for controlling the combustion amount of the burner based on the combustion amount switched by the combustion amount control means, an oil tank for storing fuel, and a remaining amount detection for detecting a predetermined remaining amount A in the oil tank Means, and when the remaining amount detecting means detects a predetermined remaining amount A of the fuel, a combustible time calculating means for calculating a combustion continuation time according to a combustion amount at that time or a preset combustion amount, The apparatus includes a combustible time measuring means for measuring the combustible time, and a display unit for displaying the combustible time measured by the combustible time measuring means.

When it is detected that there is only a predetermined remaining amount A of the fuel, a combustible time at the remaining amount A is calculated, and time is measured at a cycle determined from a predetermined combustion amount based on the combustible time, Since the reduced time is displayed, the combustible time can be confirmed in real time, and there is no failure such as the stop of combustion due to the timing of refueling being too late as in the past, Very convenient to use.

Further, since the combustible time is obtained based on the initial remaining amount A detected by the remaining amount detecting means, a complicated arithmetic processing for calculating the remaining amount is not required, and the configuration is extremely simple. Is to be

According to a second aspect of the present invention, in the combustion control device, when the combustion amount is switched by the combustion amount control unit, the combustion available time calculation unit determines the time during which combustion can be continued using the combustion amount after the switching. It is calculated and updated as the combustible time.

When the combustion amount is switched, the combustible time is calculated by the combustible time calculating means using the combustion amount after the switching. Therefore, for example, the combustion amount is switched from large to small. In this way, the combustible time can be extended, the accurate combustible time can be displayed, and the fuel can be used up without waste.

Further, the combustion control device according to a third aspect of the present invention includes a combustion amount change width judging section for judging a change width of the combustion amount control means, and the combustion amount control means detects a change in the combustion amount exceeding a predetermined change width. When the combustion possible time calculating means calculates the time in which combustion can be continued using the amount of combustion after switching,
The burnable time is updated.

Since the calculation by the combustible time calculating means is not performed unless the change width is equal to or larger than the predetermined change width, the frequency of calculating the combustible time can be reduced, and the frequency of changing the display is reduced. Avoid confusion.

Further, the combustion control device according to the fourth aspect of the present invention includes a combustion amount average value calculating means for calculating an average combustion amount within a predetermined time. When the amount A is detected, the time during which combustion can be continued is calculated using the average value of the combustion amount.

Since the time during which combustion can be continued is calculated using the average value of the amount of combustion within a predetermined time instead of the amount of combustion at that time, the flammable time can be increased frequently even in an environment where the amount of combustion is not stable. Can avoid user confusion without changing.

According to a fifth aspect of the present invention, in the combustion control apparatus, the combustible time measuring means measures the combustible time when the remaining amount of the fuel is detected by the remaining amount detecting means. Means, a second combustible time measuring means for measuring the time in synchronization with the first combustible time measuring means, and a combustible time updating timer for outputting an update signal at predetermined time intervals. The means updates the time measured by the first combustible time measuring means as the combustible time when the update signal is output from the combustible time update timer, and displays the time on the display unit.

In an environment where the amount of combustion is not stable, even if the combustible time is recalculated by the combustible time calculating means, the combustible time is counted by the first combustible time counting means. Since the time is not immediately copied to the second combustible time measuring means but is copied only at predetermined time intervals, the combustible time displayed on the display unit does not frequently expand and contract, and confusion for the user. Can be avoided.

According to a sixth aspect of the present invention, in the combustion control apparatus, the combustible time measuring means measures the combustible time when the remaining amount of the fuel is detected by the remaining amount detecting means. Means, and second combustible time measuring means for measuring time in synchronism with the first combustible time measuring means, wherein the second combustible time measuring means is adapted to switch the first time when the set temperature is changed by the temperature setting means. The time measured by the combustible time measuring means is updated as the combustible time and displayed on the display unit.

In an environment where the amount of combustion is not stable, even if the combustible time is recalculated by the combustible time calculating means, the combustible time is counted by the first combustible time counting means. It is not immediately copied to the second combustible time measuring means, but is copied when the set temperature is changed. Therefore, the combustible time displayed on the display unit is extended while the user does not notice. Shrinkage can be prevented, problems such as missed refueling timing can be avoided, and the user can feel that the combustible time can be extended by the user's own setting, thereby promoting the energy saving effect.

According to a seventh aspect of the present invention, there is provided the combustion control device, wherein the combustion amount control means detects a predetermined remaining amount A of the fuel by the remaining amount detecting means and displays a combustible time on the display unit.
The combustion amount is switched only when the set temperature is changed by the temperature setting means.

Since the combustion amount is switched only when the user changes the set temperature, the combustion amount is switched while the user is unaware of the change, so that the combustible time displayed on the display unit is extended and contracted. This eliminates the problem that the user misses the refueling timing.

Further, the combustion control device according to claim 8 is provided with combustion amount fixing means for fixing the combustion amount to a predetermined value. When the available time is displayed, the combustion amount is controlled by the combustion amount fixing means.

Since the amount of combustion is fixed to a predetermined value, the combustible time is only measured and does not expand or contract on the way, so it is very easy for the user to understand and the combustible time can be set arbitrarily. It is possible to improve usability.

According to a ninth aspect of the present invention, in the combustion control apparatus, the combustion amount fixing means detects a predetermined remaining amount A of the fuel by the remaining amount detecting means, and performs the combustion when the combustible time is displayed on the display. The amount is fixed.

Since the combustible time is fixed to the amount of combustion at the time of display, the feeling of heating before that is not impaired, and the combustible time can be expanded or contracted on the way only by being measured. Not so easy for users to understand.

According to a tenth aspect of the present invention, in the combustion control apparatus, the combustion amount fixing means includes a fuel amount detection means for detecting a predetermined remaining amount A of fuel.
Is detected, and the average value of the amount of combustion immediately before the combustible time is displayed on the display unit is set to a fixed value, and the amount of combustion is fixed to the average value of the amount of combustion during a predetermined time, so that the amount of combustion is stable. Even in such an environment, a proper amount of combustion is selected without impairing the feeling of heating, and the combustible time is measured only and does not expand or contract on the way.

Further, in the combustion control device according to the eleventh aspect, the combustion amount control means includes a combustion amount upper limit value setting unit for determining an upper limit value of a combustion amount change range, and the remaining amount of the fuel is determined by a remaining amount detection means. When A is detected and the combustible time is displayed on the display unit, the combustion amount at that time is set as the upper limit value of the combustion amount upper limit value setting unit, and in the change range where the upper limit value is the maximum combustion amount, The amount of combustion is controlled.

By providing a width instead of fixing the combustion amount, a combustion amount more suitable for the environment can be selected, and the combustion amount at the time when the combustible time is displayed is set as the upper limit of the change range. After that, even if the combustion amount is switched and a new combustible time is calculated by the combustible time calculation means, the calculated combustible time is shorter than the time in which combustion can be continued with the remaining amount A of fuel. It is not possible to solve the problem that the user misses the timing of refueling.

According to a twelfth aspect of the present invention, in the combustion control apparatus, when the new combustible time is calculated by changing the combustion amount and the display of the combustible time is updated, The combustion amount at that time is updated as an upper limit value, and the combustion amount is controlled in a change range in which the updated upper limit value is the maximum combustion amount.

Then, the amount of combustion is switched, and a new time for which combustion can be continued is calculated using the amount of combustion after the switching, and the amount of combustion changes each time the calculated time is displayed. Since the upper limit of the range is reduced, the calculated combustible time cannot be shortened, which has an energy-saving effect and can also solve the problem that the user misses the refueling timing.

In the combustion control device according to a thirteenth aspect, the combustion control section includes a misfire detecting means for detecting that the fuel has run out and a misfire has occurred, and a fuel amount detecting means for detecting a predetermined remaining amount A of the fuel. A first fuel consumption calculating means for calculating a fuel consumption amount until a misfire is detected, and when a misfire is confirmed by the misfire detecting means, the remaining fuel amount A detected by the remaining fuel amount detecting means is determined by the first remaining fuel amount calculating means. The learning operation is performed using the fuel consumption calculated by the consumption calculation means.

When the fuel consumption is obtained by the first consumption calculating means, the learning operation is performed using the fuel consumption as the remaining amount A in the calculation of the combustible time thereafter. Since the exact amount of fuel consumed from the time when the remaining amount A is reached until the fuel runs out can be grasped, the time for which combustion can continue with the remaining amount A of fuel can be set more accurately from the second time, and the fuel is wasted. Can be used up without.

According to a fourteenth aspect of the present invention, in the combustion control device, the remaining amount detecting means detects different predetermined remaining amounts A and B.
A second remaining amount detecting means for calculating a fuel consumption amount from the remaining amount A to the remaining amount B when the remaining amount B is detected by the second remaining amount detecting means. The learning operation is performed using the fuel consumption obtained by adding the fuel consumption calculated by the amount calculation means to the remaining amount A.

Then, the second fuel consumption calculating means makes it possible to grasp the exact fuel amount from the predetermined remaining amount A to the remaining amount B, so that the fuel amount of the remaining amount A can be more accurately calculated from the second time. Can set the time during which combustion can be continued.

In the combustion control device according to the fifteenth aspect, the combustible time displayed on the display unit is stored in a nonvolatile memory.

Since the power is stored in the non-volatile memory, even if the power is cut off or the power is turned off, when the power is restored, the combustible time stored in the non-volatile memory can be called up and timekeeping can be started.

[0039]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings, in which the same parts as those of the prior art are denoted by the same reference numerals, description thereof will be omitted, and different parts will be described.

(Embodiment 1) In FIG. 1, when the remaining amount detecting means 5 detects that there is only a predetermined remaining amount A of fuel,
Combustible time calculating means for calculating how long combustion can continue for the remaining amount A. Reference numeral 8 denotes a combustible time timer for measuring the combustible time calculated by the combustible time calculating means 7. Numeral 9 denotes a display unit for displaying the combustible time measured by the combustible time clocking means 8, numeral 10 a temperature setting means, and numeral 11 a temperature detecting means.

Next, the operation will be described. Combustion is started in the combustion unit 3 via the combustion control unit 2 in accordance with the combustion amount set by the combustion amount control unit 1 based on the temperature setting unit 10 and the temperature detection unit 11. When the remaining amount detecting means 5 detects that the fuel in the oil tank 4 is only a predetermined remaining amount A,
The combustible time calculating means 7 calculates a combustible time with the remaining amount A. The combustible time calculated here is, for example, a specific time corresponding to a predetermined combustion amount set in advance, or a time calculated according to the combustion amount at the time when the remaining amount A is detected. A specific calculation method when the combustible time (T1) is calculated according to the amount of combustion at the time when the remaining amount A is detected will be described below.

When the remaining amount of fuel is A, the time (T0) during which the fuel can be burned at a predetermined combustion amount and the fuel consumption per unit time at the predetermined combustion amount (Q0) are set in advance. If the amount of fuel consumed per unit time in the combustion amount when the remaining amount detection means 5 detects that there is only the remaining amount A is (Q1), the combustion amount at the time when the remaining amount A is detected Can be derived from the following equation.

T1 = T0 × Q0 / Q1 The combustible time calculated by the combustible time calculating means 7 is counted by the combustible time counting means 8, and the counted time is displayed on the display unit 9.

As described above, after the fuel is detected to have only the predetermined remaining amount A, the display unit 9 displays the time during which combustion can be continued. This eliminates the need to make a mistake such as stopping, and greatly improves usability.

(Embodiment 2) Next, the configuration of a combustion apparatus according to Embodiment 2 of the present invention will be described with reference to FIG. Example 1
The same parts as those described above are denoted by the same reference numerals and description thereof is omitted.

In FIG. 2, when the combustion amount is switched by the combustion amount control means 1, the time during which combustion can be continued is newly calculated by the combustion possible time calculation means 8 using the combustion amount after the switching. The calculated combustible time is counted by the combustible time counting means 8 and displayed on the display unit 9.

The method of calculating the time during which combustion can be continued with the amount of combustion after the switching will be specifically described below. The combustion amount is switched when the measured combustible time is (T2), and the fuel consumption per unit time in the combustion amount before the switching is (Q2), and the fuel consumption per unit time in the combustion amount after the switching is (Q2). Assuming that the fuel consumption is (Q3), the combustible time (T3) calculated after the switching can be derived by the following equation.

T3 = T2 × Q2 / Q3 When the combustion amount is switched as described above, the time during which combustion can be continued can be calculated based on the combustion amount after the switching, so that the accurate combustion possible time can be displayed. In addition, the fuel can be used up without waste.

(Embodiment 3) Next, the configuration of a combustion apparatus according to Embodiment 3 of the present invention will be described with reference to FIG. Example 1
2 are assigned the same reference numerals and description thereof is omitted.

In FIG. 3, reference numeral 12 denotes a combustion amount change width judging unit for judging whether the change amount of the combustion amount is larger or smaller than a predetermined value when the combustion amount is switched by the combustion amount control means 1.

Next, the operation will be described. When the fuel amount is switched by the combustion amount control means 1, the combustion amount change width determination unit 12 determines whether the change width of the combustion amount is equal to or more than a predetermined value. If it is less than the predetermined value, the change width is small and it is not considered that the combustion amount has been switched.
Does not calculate the combustible time at that time. On the other hand, if it is equal to or more than the predetermined value, it is considered that the combustion amount has been switched, and the combustion available time calculating means 7 newly calculates a time in which combustion can be continued using the switched combustion amount, and the calculated amount is calculated. The combustible time is calculated by the combustible time timer 8
Is displayed on the display unit 9.

As described above, if the change width is not larger than the predetermined change width, the combustion amount is not considered to have been switched, and the calculation of the combustible time is not performed. Therefore, the frequency of calculating the combustible time can be reduced. Can be changed less frequently, thus avoiding user confusion.

(Embodiment 4) Next, the configuration of a combustion apparatus according to Embodiment 4 of the present invention will be described with reference to FIG. Example 1
2 are assigned the same reference numerals and description thereof is omitted.

In FIG. 4, reference numeral 13 denotes an average combustion amount calculating means for calculating an average combustion amount within a predetermined time.

Next, the operation will be described. Upon receipt of a signal from the combustion amount control means 1, the average combustion amount value during a predetermined time is calculated by the average combustion amount calculation means 10, and the calculated average combustion amount value is used to determine the time during which combustion can be continued. The possible combustion time calculated by the possible combustion time calculating means 7 is counted by the possible combustion time measuring means 8 and the display section 9
Will be displayed.

As described above, since the combustible time is calculated using the average value of the combustion amount during a predetermined time instead of the combustion amount, the combustible time is frequently changed even in an environment where the combustion amount is not stable. And avoid user confusion.

(Embodiment 5) Next, the configuration of a combustion apparatus according to Embodiment 5 of the present invention will be described with reference to FIG. Example 1
2 are assigned the same reference numerals and description thereof is omitted. In FIG. 5, reference numeral 14 denotes second combustible time measuring means which measures the combustible time calculated by the combustible time calculating means 7 in synchronization with the first combustible time measuring means 8, and 15 designates a second combustible time counting means every predetermined time. This is a combustible time update timer for copying the time counted by the first combustible time counting means 8 to the second combustible time counting means 14.

Next, the operation will be described. When the remaining amount detecting means 5 detects that the fuel has only a predetermined remaining amount A, the combustible time calculating means 7 calculates a time during which the fuel can be burned with the remaining amount A, and the time is the first combustible time counting means. 8 and is also copied to the second combustible time clocking means 14 and timed in synchronization with the first combustible time clocking means 8. At this time, the combustion available time update timer 15 is started, and thereafter, when the combustion amount is switched by the combustion amount control means 1, the time during which combustion can be continued using the switched combustion amount is calculated as the combustion available time calculation means. 7 and the newly calculated combustible time is the first
The time is counted by the combustible time counting means 8. At this point, the first combustible time counting means 8 and the second combustible time counting means 14 are simultaneously measuring different times. The newly calculated time counted by the first combustible time measuring means 8 is supplied to the second combustible time measuring means 14 when the combustible time update timer 15 overflows (or underflow is possible). The first burnable time counting means 8 and the second combustible time counting means 14 are copied, and the time of the same contents is counted. The display unit 9 displays the time measured by the second combustible time measuring means 14.

As described above, even if the flammable time is changed by the flammable time calculation means 7, the flammable time is counted by the first flammable time measuring means 8, but immediately the second flammable time is measured. Since it is not copied to the time counting means 14 and is copied only at predetermined time intervals, the combustible time displayed on the display unit 9 does not frequently expand and contract, and confusion of the user can be avoided.

(Embodiment 6) Next, the configuration of a combustion apparatus according to Embodiment 6 of the present invention will be described with reference to FIG. Example 1
2 are assigned the same reference numerals and description thereof is omitted.

In FIG. 6, reference numeral 10 denotes a temperature setting means for setting a desired temperature.

Next, the operation will be described. When the remaining amount detecting means 5 detects that the fuel has only a predetermined remaining amount A, the combustible time calculating means 7 calculates a time during which the fuel can be burned with the remaining amount A, and the time is the first combustible time counting means. 8 and is also copied to the second flammable time measuring means 14 and timed in synchronization with the first flammable time measuring means 8. Thereafter, when the combustion amount is switched by the combustion amount control means 1, a time during which combustion can be continued is newly calculated by the combustion possible time calculation means 7 using the combustion amount after the switching, and the new combustion time is calculated. Is calculated as the first
The time is counted by the combustible time counting means 8. At this point, the first combustible time counting means 8 and the second combustible time counting means 14 are simultaneously measuring different times. The time measured by the first combustible time measuring means 8 is copied to the second combustible time measuring means 14 in response to a signal indicating that the set temperature has been changed from the temperature setting means 10, and the first combustible time is measured. The time counting means 8 and the second combustible time counting means 14 time the same contents. The display unit 9 displays the time measured by the second combustible time measuring means 14. Further, in the case where the combustion amount is switched by changing the set temperature by the temperature setting means 10, in accordance with the above description, the time during which combustion can be continued using the switched combustion amount is determined as the combustion available time. The newly combustible time newly calculated by the calculating means 7 is calculated by the first combustible time measuring means 8 and the second combustible time measuring means is received in response to the signal from the temperature setting means 10. 14 and the time is counted, and the second combustible time measuring means 14 is displayed by the display unit 9.
Displays the time being measured by.

As described above, even if the flammable time is changed by the flammable time calculating means 7, the flammable time is counted by the first flammable time measuring means 8, but immediately the second flammable time is measured. The mechanism is not copied to the timer 14 but is copied when the set temperature is changed. Therefore, the combustible time displayed on the display unit 9 is prevented from expanding and contracting while the user does not notice. Can,
In addition to avoiding the problem of missing the timing of refueling, the user can realize that the combustible time can be extended by the user's own setting, and appeal the energy saving effect.

(Embodiment 7) Next, the configuration of a combustion apparatus according to Embodiment 7 of the present invention will be described with reference to FIG. Example 1
The same parts as those described above are denoted by the same reference numerals and description thereof is omitted.

The operation will be described with reference to FIG. When the remaining amount detecting means 5 detects that the fuel has only a predetermined remaining amount A, the combustible time calculating means 7 calculates the time during which the fuel can be burned with the remaining amount A. Timed. Thereafter, the combustion amount is not switched arbitrarily, and the combustion amount is switched by the combustion amount control unit 1 only when a signal indicating that the set temperature has been changed is received from the temperature setting unit 10. The combustion possible time is newly calculated by the combustible time calculating means 7 using the combustion amount after the combustion, and the calculated combustible time is counted by the combustible time counting means 8. The display unit 9 displays the time measured by the combustible time measuring means 8.

As described above, after the combustible time is displayed, the combustion amount is switched only when the user changes the set temperature. Therefore, the combustion amount is switched without the user noticing. Does not increase or decrease the combustible time indicated in the above, and it is possible to avoid a problem that the user misses the refueling timing.

Embodiment 8 Next, the configuration of a combustion apparatus according to Embodiment 8 of the present invention will be described with reference to FIG. Example 1
The same parts as those described above are denoted by the same reference numerals and description thereof is omitted.

In FIG. 8, reference numeral 17 denotes a combustion amount fixing means for fixing the combustion amount to a predetermined value.

Next, the operation will be described. When the remaining amount detecting means 5 detects that there is only a predetermined remaining amount A of fuel, the combustible time calculating means 7 calculates the time during which the fuel can be burned with the remaining amount A. The calculated combustible time is counted by the combustible time counting means 8, and the counted time is displayed on the display unit 9. Thereafter, the combustion amount is fixed by the combustion amount fixing means 17. The combustion amount fixed at this time is a predetermined value set in advance, the combustion amount at the time when the combustible time is displayed, or the average value of the combustion amount within the predetermined time before the combustible time is displayed. .

As described above, when the combustible time is displayed and the amount of combustion is fixed thereafter, the combustible time does not change in the middle, so that it is very easy for the user to understand.

(Embodiment 9) Next, the configuration of a combustion apparatus according to Embodiment 9 of the present invention will be described with reference to FIG. Example 1
The same parts as those described above are denoted by the same reference numerals and description thereof is omitted.

In FIG. 9, reference numeral 18 denotes a combustion amount upper limit setting unit for setting an upper limit of the combustion amount.

Next, the operation will be described. When the remaining amount detecting means 5 detects that the fuel has only a predetermined remaining amount A, the combustible time calculating means 7 calculates the time in which the fuel can be burned with the remaining amount A, and the time is supplied to the combustible time measuring means 8. Timed. The fuel amount at that time is set to the upper limit value of the combustion amount change range by the combustion amount upper limit setting unit 18, and the subsequent combustion amount is limited so as not to exceed the upper limit value. Thereafter, every time the combustion amount is switched by the combustion amount control means 1, a time during which combustion can be continued using the switched combustion amount is newly calculated by the combustion possible time calculation means 7, and the calculated time is calculated. The combustible time is counted by the combustible time measuring means 8. The combustion amount at that time is again set to the upper limit value by the combustion amount upper limit setting unit 18 to limit the subsequent combustion amount. The display unit 9 displays the time measured by the combustible time measuring means 8.

As described above, the amount of combustion is switched, and the time during which combustion can be continued is newly calculated using the amount of combustion after the switching, and the amount of combustion is calculated every time the calculated time is displayed. Since the upper limit of the changing range will be lowered,
The displayed combustible time cannot be shortened, has an energy saving effect, and can also solve the problem that the user misses the refueling timing.

(Embodiment 10) Next, the configuration of a combustion apparatus according to Embodiment 10 of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In FIG. 10, reference numeral 19 denotes misfire detecting means for detecting that the device has stopped due to misfire. Reference numeral 20 denotes a time when the remaining amount detecting means 5 detects that the fuel has reached a predetermined remaining amount A. This is the first consumption calculating means for calculating the fuel consumption until the misfire detection means 16 detects the misfire.

Next, the operation will be described. Once the misfire is detected and the fuel consumption (Q) is calculated by the first consumption calculating means 20, the calculation is performed again when the remaining amount detecting means 5 detects that the fuel has only a predetermined remaining amount A. From the fuel consumption (Q) and the fuel consumption per unit time (Q1) corresponding to the combustion amount at the time when the remaining amount A is detected, the combustion continuation time (T1) is calculated by the combustion possible time calculation means 7 as follows. It can be derived by an equation.

When the fuel consumption (Q) is calculated by the first fuel consumption calculation means 20 as T1 = Q / Q1 or more, the fuel consumption (Q) is set as the remaining amount A and the combustible time is set. By performing the learning operation as described above, it is possible to grasp an accurate fuel amount from the time when the predetermined remaining amount A is reached to the time when the remaining amount is exhausted.
From the second time, it is possible to more accurately set the time during which combustion can be continued with the remaining amount A of fuel, and the fuel can be used up without waste.

(Embodiment 11) Next, the configuration of a combustion apparatus according to Embodiment 11 of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In FIG. 11, reference numeral 21 denotes second remaining amount detecting means for detecting a predetermined remaining amount B different from the predetermined remaining amount A detected by the first remaining amount detecting means 5; From remaining B
This is the second consumption calculating means for calculating the fuel consumption up to the second.

Next, the operation will be described. Once the first remaining amount detecting means 5 detects the predetermined remaining amount A, and if the second remaining amount detecting means 21 detects that the fuel has decreased to the remaining amount B, the second consumption amount calculating means 22 The fuel consumption B from the actual remaining amount A to the remaining amount B is calculated. Again the first
When the remaining amount detecting means 5 detects that there is only a predetermined remaining amount A of the fuel, the fuel consumption B already calculated and the fuel consumption per unit time according to the combustion amount at this time are used. In addition, the time during which combustion can be continued is calculated more accurately by the combustible time calculation means 7.

As described above, since the second fuel consumption calculating means 21 can grasp the accurate fuel amount from the predetermined remaining amount A to the remaining amount B, the remaining fuel amount can be obtained more accurately from the second time. It is possible to set the time during which combustion can be continued with the amount A of fuel.

(Embodiment 12) Next, the configuration of a combustion apparatus according to Embodiment 12 of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In FIG. 12, reference numeral 23 denotes a nonvolatile memory for storing the combustible time displayed on the display unit 9.

As described above, since the displayed combustible time is stored in the non-volatile memory, even if the power is cut off or the power is turned off, the combustible time stored in the non-volatile memory is restored when the power is restored. Call timing can be started.

[0086]

As described above, according to the combustion control device of the first aspect, when it is detected that the fuel has only a predetermined remaining amount A, the combustible time at the remaining amount A is calculated, and the combustible time is calculated. Since the time is measured at a cycle determined from the predetermined combustion amount based on the time and the reduced time is displayed, the combustible time can be confirmed in real time, and the refueling timing is too late as in the past, and the combustion It does not make a mistake such as being stopped, and is extremely easy to use.

Further, since the combustible time is obtained based on the initial remaining amount A detected by the remaining amount detecting means, complicated arithmetic processing for calculating the remaining amount is not required, and the configuration is extremely simple. Is to be

According to the combustion control device of the second aspect,
When the combustion amount is switched, the combustion continuation time is calculated using the combustion amount, so that the accurate combustion possible time can be displayed, and the fuel can be used up without waste.

According to the combustion control device of the third aspect,
If the change amount is not larger than the predetermined change width, the calculation recalculation by the combustible time calculating means is not performed even if the combustion amount is switched. Can avoid user confusion.

Further, according to the combustion control device of the fourth aspect,
Since the time during which combustion can be continued is calculated using the average value of the combustion amount during the predetermined time instead of the combustion amount, the combustible time does not change frequently even in an environment where the combustion amount is unstable, and the user's Avoid confusion.

According to the combustion control device of the fifth aspect,
The time measured by the first combustible time measuring means is copied to the second combustible time measuring means only every predetermined time,
Since the time displayed by the second combustible time measuring means is displayed on the display unit, the displayed combustible time frequently expands and contracts even in an environment where the amount of combustion is unstable. And avoid user confusion.

According to the combustion control device of the sixth aspect,
When the set temperature is changed, the time measured by the first combustible time measuring means is copied to the second combustible time measuring means. Since the time that is being measured is displayed, the combustible time displayed on the display unit can be prevented from expanding and contracting while the user does not notice,
In addition to avoiding the problem of missing the timing of refueling, the user can realize that the combustible time can be extended by the user's own setting, and appeal the energy saving effect.

Further, according to the combustion control device of claim 7,
After displaying the combustible time on the display, the combustion amount is switched only when the set temperature is changed, so the combustion amount switches without the user noticing, and the displayed combustible time Does not expand or contract, and it is possible to avoid the problem that the user misses the timing of refueling.

Further, according to the combustion control device of claim 8,
After the display of the combustible time on the display unit, the combustion amount is fixed to a predetermined value, so that the combustible time does not change on the way and is very easy for the user to understand.

Further, according to the combustion control device of the ninth aspect,
After displaying the combustible time on the display, the amount of combustion is fixed to the amount of combustion at the time of displaying the combustible time,
It is very easy for the user to understand because the previous feeling of heating is not impaired and the possible combustion time is not changed in the middle.

According to the combustion control device of the tenth aspect, after the combustible time is displayed on the display unit, the combustion amount is fixed to the average value of the combustion amount during a predetermined time before the combustible time is displayed. Therefore, even in an environment where the combustion amount is not stable, by selecting a proper combustion amount, the feeling of heating is not impaired, and the combustible time is not changed on the way, so that the usability is good.

Further, according to the combustion control apparatus of the eleventh aspect, after displaying the combustible time on the display unit, the operation is performed with the combustion width at the time of displaying the combustible time as the upper limit of the change range. By doing so, it is possible to select a combustion amount that is more suitable for the environment than a fixed combustion amount, and then, by switching the combustion amount, even if a new combustion time is calculated, the combustion time is It is impossible for the remaining amount A of fuel to be shorter than the time in which combustion can be continued, and the problem that the user misses the refueling timing can be solved.

Further, according to the combustion control apparatus of the twelfth aspect, after the combustible time is displayed on the display, when the combustion amount is switched, the combustion can be continued using the combustion amount after the switching. New time is calculated and the upper limit of the change range of the combustion amount is reduced each time the calculated time is displayed, so that the newly calculated combustible time is short. It is not possible to have an energy saving effect,
The problem that the user misses the timing of refueling can also be solved.

Further, according to the combustion control device of the thirteenth aspect, the first fuel consumption calculating means makes it possible to grasp the exact fuel amount from the time when the predetermined remaining amount A is reached to the time when the remaining amount is exhausted.
From the second time, it is possible to more accurately set the time during which combustion can be continued with the remaining amount A of fuel, and the fuel can be used up without waste.

Further, according to the combustion control device of the present invention, since the second fuel consumption calculating means can accurately grasp the fuel amount from the predetermined remaining amount A to the remaining amount B, the second consumption amount calculating means can determine the fuel amount. From the second time, it is possible to more accurately set the time during which combustion with the remaining amount A of fuel can be continued.

According to the combustion control apparatus of the present invention, the displayed combustible time is stored in the non-volatile memory. Therefore, even if the power is cut off or the power is turned off, the non-volatile memory is stored when the power is restored. The stored combustible time can be called and the timing can be started.

[Brief description of the drawings]

FIG. 1 is a block diagram of a combustion control device according to a first embodiment of the present invention.

FIG. 2 is a block diagram of a combustion control device according to a second embodiment of the present invention.

FIG. 3 is a block diagram of a combustion control device according to a third embodiment of the present invention.

FIG. 4 is a block diagram of a combustion control device according to a fourth embodiment of the present invention.

FIG. 5 is a block diagram of a combustion control device according to a fifth embodiment of the present invention.

FIG. 6 is a block diagram of a combustion control device according to a sixth embodiment of the present invention.

FIG. 7 is a block diagram of a combustion control device according to a seventh embodiment of the present invention.

FIG. 8 is a block diagram of a combustion control device according to an eighth embodiment of the present invention.

FIG. 9 is a block diagram of a combustion control device according to a ninth embodiment of the present invention.

FIG. 10 is a block diagram of a combustion control device according to a tenth embodiment of the present invention.

FIG. 11 is a block diagram of a combustion control device according to an eleventh embodiment of the present invention.

FIG. 12 is a block diagram of a combustion control device according to a twelfth embodiment of the present invention.

FIG. 13 is a block diagram showing a conventional hot air heater control device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 combustion amount control means 2 combustion control part 3 combustion part 4 oil tank 5 remaining amount detection means 7 combustion possible time calculation means 8 first combustion possible time measuring means 9 display part 10 temperature setting part 12 combustion amount change width determination part 13 combustion Amount average value calculating means 14 Second combustible time measuring means 15 Combustible time update timer 17 Burning amount fixing means 18 Burning amount upper limit setting unit 19 Misfire detecting means 20 First consumption amount calculating means 21 Second remaining amount detecting means 22 Second consumption calculation means 23 Non-volatile memory

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiro Takiguchi 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F-term (reference) 3K068 NA01 NA04

Claims (15)

[Claims] A temperature setting unit, a temperature detection unit, a combustion unit for burning fuel, a combustion amount control unit for switching a combustion amount to a plurality of stages based on outputs of the temperature setting unit and the temperature detection unit, and a combustion unit. A combustion control unit that controls the combustion amount of the burner based on the combustion amount switched by the amount control unit;
An oil tank for storing fuel, a remaining amount detecting means for detecting a predetermined remaining amount A in the oil tank, and a combustion amount at the time when the remaining amount detecting means detects the predetermined remaining amount A of the fuel. Alternatively, a combustible time calculating means for calculating a time in which combustion can be continued according to a preset combustion amount, a combustible time measuring means for measuring the combustible time, and a combustion time counted by the combustible time measuring means A combustion control device comprising a display unit for displaying a possible time. 2. The combustion possible time calculation means calculates the time in which combustion can be continued using the combustion amount after the switching when the combustion amount is switched by the combustion amount control means, and updates it as the combustion possible time. 2. The combustion control device according to claim 1, wherein: 3. A combustion amount change width judging section for judging a change width of the combustion amount control means, wherein when the combustion amount control means has changed the combustion amount by a predetermined change width or more, the combustion available time calculation means is provided. The combustion control device according to claim 1, wherein a combustion continuable time is calculated using the combustion amount after the switching, and is updated as the combustible time. 4. A combustion amount average value calculating means for calculating a combustion amount average value within a predetermined time, wherein the combustible time calculating means is configured to perform the combustion when the remaining amount of fuel is detected by the remaining amount detecting means. 2. The combustion control device according to claim 1, wherein a time during which combustion can be continued is calculated using the average value. 5. A combustible time measuring means comprising: first combustible time measuring means for measuring a combustible time when a predetermined remaining amount A of fuel is detected by the remaining amount detecting means; and the first combustible time. A second combustible time measuring means for measuring the time in synchronization with the time measuring means; and a combustible time update timer for outputting an update signal every predetermined time, wherein the second combustible time measuring means is updated from the combustible time update timer. 5. The device according to claim 1, wherein when the signal is output, the time measured by the first combustible time measuring means is updated as a combustible time and displayed on a display unit. 6. Combustion control device. 6. A first combustible time measuring means for measuring a combustible time when a predetermined remaining amount A of fuel is detected by the remaining amount detecting means, and the first combustible time. A second combustible time measuring means for measuring time in synchronization with the time measuring means, wherein the second combustible time measuring means is timed by the first combustible time measuring means when the set temperature is changed by the temperature setting means. The combustion control device according to any one of claims 1 to 4, wherein the time during which the vehicle is present is updated as a combustible time and displayed on a display unit. 7. The combustion amount control means detects a predetermined remaining amount A of fuel by the remaining amount detection means, and when the combustible time is displayed on the display unit, the set temperature is changed by the temperature setting means. The combustion control device according to any one of claims 1 to 6, wherein the switching of the amount of combustion is performed only when the combustion is performed. 8. A combustion amount fixing means for fixing the combustion amount to a predetermined value, wherein when a predetermined remaining amount A of the fuel is detected by the remaining amount detecting means and the combustible time is displayed on the display section, The combustion amount is controlled by the combustion amount fixing means.
The combustion control device according to any one of the preceding claims. 9. The combustion amount fixing means detects a predetermined remaining amount A of the fuel by the remaining amount detection means, and sets the combustion amount when the combustible time is displayed on the display unit as a fixed value. The combustion control device according to claim 8. 10. The combustion amount fixing means detects a predetermined remaining amount A of the fuel by the remaining amount detection means, and sets the average value of the combustion amount immediately before the combustible time is displayed on the display unit as a fixed value. 9. The combustion control device according to claim 8, wherein: 11. The combustion amount control means includes a combustion amount upper limit value setting section for determining an upper limit value of a combustion amount change range. When the combustible time is displayed, the combustion amount at that time is set as an upper limit value of a combustion amount upper limit setting unit, and the combustion amount is controlled in a change range in which the upper limit value is the maximum combustion amount. Item 8. The combustion control device according to any one of Items 1 to 7. 12. A combustion amount upper limit setting unit calculates a new combustible time by changing the combustion amount, and when the display of the combustible time is updated, sets the combustion amount at that time as an upper limit. 12. The combustion amount is controlled in an updated range in which the updated upper limit is set to a maximum combustion amount.
The combustion control device according to any one of the preceding claims. 13. A combustion control unit comprising: a misfire detecting means for detecting that fuel has run out and a misfire has occurred; and a fuel consumption amount from a time when a predetermined remaining amount A of fuel is detected by the remaining quantity detecting means to a time when misfire is detected. A first consumption calculating means for calculating the fuel consumption, wherein when a misfire is detected by the misfire detecting means, the remaining amount A detected by the remaining fuel detecting means is calculated by the first consumption calculating means. The combustion control device according to any one of claims 1 to 12, wherein the learning operation is performed using the consumption amount. 14. The remaining amount detecting means includes a first remaining amount detecting means and a second remaining amount detecting means for detecting different predetermined remaining amounts A and B, and the second remaining amount detecting means detects the remaining amount B. When it is detected, the learning operation is performed using the fuel consumption obtained by adding the fuel consumption calculated by the second consumption calculating means for calculating the fuel consumption from the remaining amount A to the remaining amount B to the remaining amount A. 13. The combustion control device according to claim 1, wherein the control is performed. 15. The combustion control device according to claim 1, wherein the combustible time displayed on the display unit is stored in a nonvolatile memory.